Alternate Title: NSDD 23: US Civil Defense Policy
National Security Decision Directive 23 sets forth US Civil Defense policy. "Civil Defense, along with and effective Continuity of Government program, emergency mobilization and secure, reconstitutable telecommunications systems, is an essential ingredient of our nuclear deterrent forces. It is a matter of national priority that the US have a Civil Defense program which provides for the survival of the US population even in a protracted general war involving nuclear destruction in the United States."
National Security Decision Directive 23; NSDD 23
Federation of American Scientists: http://www.fas.org/